2003 Mazda RX8 1.3L Petrol · KB03 NUC
2003 Mazda RX8 (1.3L, petrol). First registered 01 Aug 2003. Recorded mileage 58,067 miles. MOT valid until 21 Nov 2026. Taxed until 01 Aug 2026.
- Make & Model
- MAZDA RX8
- Year / Origin
- 2003 · Borehamwood (Luton)
- Safety Recall
- Unknown
- MOT Status
- Valid until 21 Nov 2026
- Road Tax
- Taxed (01 Aug 2026)
- Recorded Mileage
- 58,067 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 1.3L
- Reliability Guide
- Common Faults
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
KB03 NUC Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 22/11/2025
- 58,067 miles recorded at latest MOT
- 2 historical MOT failures
- 4 defects noted at the latest MOT
- Recurring tyres items (7 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
KB03 NUC MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2003 Mazda Rx8 (KB03 NUC) between December 2022 and November 2025.
The record contains 3 passes and 2 failures.
The most recent test on 22 November 2025 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Tyres (7 issues), Lighting (5 issues), Brakes (2 issues), Bodywork (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 8 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
Recorded failure items include: “Offside Front Anti-roll bar ball joint likely to become detached Detatched (5.3.4 (a) (ii))”; “Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))”; “Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))”.
KB03 NUC Mileage History
- 09/12/202252,683 mi
- 03/10/202455,093 mi+2,410 mi
- 04/10/202455,094 mi+1 mi
- 15/11/202557,845 mi+2,751 mi
- 22/11/202558,067 mi+222 mi
Average of roughly 1,823 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mazda Mazda RX-8
Our database tracks 3 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Below Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Common Problems: MAZDA RX8
Known issues reported by owners and MOT testers.
- Low Compression and Hot-Start Failure(Serious)
Wear in the rotary engine reduces compression, making the car increasingly hard to restart when warm and often leading to an expensive rebuild.
- Ignition Coil Failure and Catalytic Converter Damage(Moderate)
Weak coils cause misfires and incomplete combustion, which can quickly overheat and destroy the catalyst on a rotary that already burns oil by design.
- Rear Arch and Sill Corrosion(Serious)
UK RX-8s rot around the rear arches, sills and front chassis rails, and fresh underseal can hide serious structural work.
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MAZDA RX8 Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2003 model year cars.
- Low Compression and Hot-Start FailureSerious
Wear in the rotary engine reduces compression, making the car increasingly hard to restart when warm and often leading to an expensive rebuild.
- Ignition Coil Failure and Catalytic Converter DamageModerate
Weak coils cause misfires and incomplete combustion, which can quickly overheat and destroy the catalyst on a rotary that already burns oil by design.
- Rear Arch and Sill CorrosionSerious
UK RX-8s rot around the rear arches, sills and front chassis rails, and fresh underseal can hide serious structural work.
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